Which SBS upgrades/conversions for Tamiya T-72 go together?

You may want to check out the Das Werk/Amusing Hobby T72M. It can be had for very reasonable price and would probably be less expensive than all the AM stuff you would need. I just finished it recently and it was a hassle free build. It’s billed as a 3in1 kit. Build my as an East German machine. Good Luck.